Lifetime Estimation of the Upper Stage of GSAT-14 in Geostationary Transfer Orbit

Table 1

Observed and predicted mean apogee altitude for zone A.

TLE epoch (UTC)	Mean apogee observed (km)	Mean apogee predicted (km)	Error (km)
February 13, 2014, 15:24	35383.75000	35383.56640	0.184
February 14, 2014, 12:08	35378.30469	35379.12109	−0.816
February 15, 2014, 19:12	35372.59375	35373.03125	−0.438
February 16, 2014, 05:33	35371.17969	35371.17578	0.004
February 17, 2014, 22:59	35364.45313	35363.92578	0.527
February 18, 2014, 19:41	35357.75781	35360.13672	−2.379
February 19, 2014, 06:02	35357.01172	35357.91797	−0.906
February 20, 2014, 13:05	35348.90234	35350.23828	−1.336